Improvement in machinery in the manufacture of salt



0. E. POHL.

v Machinery in the Manufacture ofvSalt. N0.155,97I.

Patented Uct.13,18 74.

WITNESSES INVENTOR fiflw/Ziwz/za Tl iE BRAPQIC co- PHOTO-LITH.39&4I VARKPLACEIVLY,

UNITED STATES PATENT OFFICE.

OTTO E. POHL, OF LIVERPOOL ENGLAND.

IMPROVEMENT lN MACHINERY IN THE MANUFACTURE OF SALT.

Specification forming part of Letters Patent No. 155,971, dated October13, 1874; application filed June 24, 1874.

To all whom it may concern:

Be it known that I, O'r'ro ERNEsT POHL,

of Liverpool, in the county of Lancaster, England, have inventedImprovements in Mach nery Employed in the Manufacture of Salt, of whichthe following is a specification:

The main object of my invention is to produce common salt (chloride ofsodium) of ordinary merchant qualities at a cheaper rate than heretoforehas been practicable. For that purpose, as well as for other minorpurposes, as hereafter appears, I have devised the novel arrangements,constructions, and combinations of apparatus or appliances now to bedescribed.

The said apparatus or appliances may be used together as a whole, orparts may be employed separately, in ordinary salt-works; first, asmeans for quickly removin to the drying-room or warehouse the saltcollected at the end of the pan by the endless traveling collectors,under the above second head, I employ, in combination with such endlesstraveling collectors, traveling carriers, moving at or about a rightangle thereto; second, as means for preventing salt from falling betweenthe ends of the lengths of the boards forming the surface of the endlesstraveling collectors, when series of boards are used, I employstationary angular sheds or pieces to deflect the salt onto the boards.

That my said improvements may be clearly understood, I have appendedhereto a sheet of drawings, whereon the several parts of my inventionare delineated.

Figure l is a longitudinal section; Fig. 2, a plan view, part only ofendless chain and board collectors being shown; Fig. 3, a transversesection; Fig. 4, an end elevation; and Figs. 5, 6, 7, and 8, views ofparts drawn to a larger scale-Fig. 5 being a transverse section of anangular shed; Fig. 6, a transverse section of a chain andcollecting-board Fig. 7, a side elevation of a portion of the chain andboard and triangular carrying-piece; and Fig. 8, side elevation andsection of transverse collecting-chain and guiding-piece.

In all these views like letters denote the same parts.

a is the lower evaporating-pan; 1), top evaporating-pan, supported oncolumns a. The arrows in the space between the brim in pan a and thebottom of pan [1 show the direction in which flames, heating-gases, orproducts of combustion travel from the fire-place d to the chimney 6.There is nothing new in the fireplace or chimney which may be variouslyarranged. Gases from a Siemens producer may be employed. To preventparticles of carbonaceous matter from lodging in the lower pan, theadmission of air should be well regulated, so as to insure efiectivecombustion. The chimney-space should be suffioiently large to conveyaway the waste products and steam; f, chain of one endless travelingcollector. In the modification shown, transverse wood boards g aresecured to the chain, and it is proposed to use a series of threechains, each fitted with boards. I prefer that iron plates should befitted to the chains, and that the boards should be in their turnsecured to the said plates. Motion is given to the chains f and boards 9by the transverse shaft h, whereon a wheel, z, is secured. This wheelgears with a worm, j, on the first motion-shaft k. A speed of onerevolution per minute, or two feet in that time, answers well; Z, pinionon h to carry endless chain. This pinion is made to fit links of thechain, and has pieces thereon to prevent slipping. Instead of theendless traveling collectors being made to travel continuously, anintermittent motion may be given to them; and instead of chains andboards, flexible bands, of woolen or other material, or theirequivalents, may be used; and such bands may be the full width of thepan, as the boards might be, if desired; m, transverse chain; a, boardsforming a carrier for conveying away the salt to the drying-rooln orwarehouse. Motion is given to said carrier from a shaft, 10 gearingthrough a wheel, W, with the driving-shaft k. m 01. moves underneath theend of the traveling collectors, and receives the salt droppedtherefrom. To convey the salt upward into the desired place, pulleys 0are placed on the bolts which connect the links of the chain, and thesebear on the ends of the stationary piece 12. The rollers, instead ofbeing onthe end of the chainbolts, might be on the stationary piece. Inlike manner, pulleys q are employed to keep the part of the chain forthe time being (the 1. The traveling carriers, in combination with theendless traveling collectors, for the pur- 'pose set forth.

2. The stationary angular sheds, in combination with series of endlesstraveling collectors, for the purpose set forth.

OTTO ERNEST POHL. Witnesses:

J. KING, J J oHNsoN.

